Improvement in machines for sewing sacks or bags



v H. PQGARL'AND. v Machines for Sewing Sacks and Bags.

04 ,156,413, Pa tented Nov. 3,1874.

lilwwi' is;

/ if I WWI.

THE GRAPHIC CO. FHOTO'LITHESJL 4-! PARK PLACE N.Y.

UNITE-n STATES PATENT O FIcn HOWARD P. GARLAND, OF SAN FRANCISCO,CALIFORNIA, ASSIGNOR OF ONE-THIRD HIS RIGHT TO ANDREW J. GOVE AND ISAACFRIED- LANDER, OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR SEWING SACKS ORBAGS.

Specification forming part of Letters Patent No. 156,418, dated November3, 1874; application filed I August 22, 1874.

To all whom it may concern.-

Be it known that I, HOWARD P. GARLAND, of San Francisco, county of SanFrancisco and State of California, have invented an Improved Machine forSewing Sacks, Bags, Carpets, and for other like purposes; and I dohereby declare that the following is a full, clear, and exactdescription of the same, so as to enable others skilled in the art orscience to which it most nearly appertains to make and use the saidneedle and sewing-machine, reference being had to the accompanyingdrawings, and to the letters marked thereon.

This invention consists mainly in the novel construction of the needle,it being spiral in form, or not unlike that of a cork-screw, with acontinuous groove around the outer trend or spirals, in which to windthe thread, and a spring at or near the point, with which to confine theend of the thread.

A slotted guiding-case is provided, in which the needle operates, alongwhich is attached a plate, and around which a belt with pins is causedto operate, to keep the sack in position, all of which will hereinaftermore fully appear.

Referring to the drawings forming a part of this specification, Figure 1represents a plan of my device, with a portion broken away to show thetrend of the needle. Fig. 2 is a plan of a portion of a sack, showingthe stitch. Fig. 3 is a side view, showing the belt or band with pins inposition; Fig. 4, a front-end vertical section; Fig. 5, an enlargedsection of the needle and spring with thread in position. The needle oris connected to an arbor, b,

and is operated by a belt on the pulley c in a horizontal manner in thecase A. Around the outer circumference or trend of the needle,

' from the heel to near the point, is made a groove, (1, of sufficientdepth to receive the twine or thread, which groove terminates under aspring, 6, which confines the end of the thread f, when, by turning theneedle in an opposite direction and guiding the thread, the groove isfilled from-end to end. The case A,

in which the needle operates, is confined to a table, and is providedwith a slot, h, for introducing the end of the thread under the springand guiding it in filling the groove. From the case extends aspring-plate, z, provided with end rollers j, around which a belt, is,is caused to pass. This belt is provided with pins" K K which travelwith the same velocity as that of the needle or screw and cloth. Thoserepresented at K are vertical, and pass through the cloth and into theguiding-slot K in the bed-plate, while the pins represented by K beingplaced at intervals along the edge of the belt and at right angles withit, project so as to follow the trend of the screw both in the forwardand reverse motion of the needle, and prevents the cloth, with the aidof the hand, from being unduly drawn toward the needle, in which case acrooked and uneven stitch would be made along the edge of it. The pins Kalso serve to press and keep the cloth down upon the plate at thestarting-point as well as in sewing. A lip, Z, at the end of the frameor plate serves as a guide to the cloth at its initial or starting pointand in sewing. I

In its operation, the needle being threaded, as above described, one endof the cloth is placed under the lip Z, in close proximity to the pointm, and the needle set in motion in a reverse direction from that of theoperator, and enters the cloth in the manner of a screw, carrying thethread with it until the desired length of seam has been obtained, whenthe end of the thread is removed from under the spring 6, and two coilsloosened from the spirals at the opposite end; then a reverse motion isgiven the needle, which tightens up the thread the whole length of theseam.

In this operation, however, and in order to make sure the taking up theslack of the thread and tighten the stitch, a deeper cut, 0, is made inthe groove, into which the opposite end of the thread is drawn inwinding, and in this wise the bi ght of the thread is had around thespirals composing the needle. Thus the overseaming is completed, and astronger and. more even stitch, g, is had than if it were made byhand-sewing. I

This needle can be operated in a very rapid manner by a common treadlewith a belt-connection over the pulleys on the arbor b.

In practice, it is fully believed that twice the number of sacks can besewed in a given time with this machine than by the ordinary devices nowemployed.

It should here be observed, however, that the needle may be constructedof various lengths yet the entire length will not be available onaccount of the slack caused by unwinding the thread.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of the spiral needle, having a groove, as described,and the feeding-belt, as and for the purpose set forth.

2. The spiral needle, provided at its end with the spring for holdingthe end of the thread in position, and with a groove or retention-guide,as set forth and specified.

3. The slotted case A, in which the spiral needle operates, incombination with the said needle, when constructed substantially in themanner as herein set forth and specified.

In witness whereof I have hereunto set my hand and seal.

HOWARD P. GARLAND.

Witnesses:

G. W. M. SMITH, PHILIP MAHLER.

